1. http://nodal.ercot.com 1 Market Readiness Activities MRS #2 January 28, 2010

2. Agenda Overall Market Touchpoints Market Participant Training Market Outreach Update Market Readiness Activities Market Readiness Center/Scorecard (separate presentation) http://nodal.ercot.com 2

3. 2010 Participant Readiness Touch Points Special Nodal Program Committee 18 January 2010 Meetings Training Outreach Market trials April March February January 7 site visits MP 6 –Telemetry & MP 14 –RARF launched 1/28 MRS #2 NATF 1/5 Nodal 101 LSE 201 Generation 101, 201 CRR –Online Settlement Workshop NMMS 5 site visits Additional Phase 3 metrics Standby site visits mitigation approach Start weekly calls Mandatory QSE/CRRAH re- qualification begins Phase 3 Handbooks COMS Outage Scheduler CRR RTM/LFC Weekly calls Phase 3 Market Trials initiates QSE OS qualification Phase 4 Handbooks DAM/RUC MIS Credit Nodal 101 LSE 201 Basic Training Generation 101, 201 CRR – instructor-led Settlement Workshop Operations Seminar NATF 2/2 Nodal 101 LSE 201 Basic Training Generation 101, 201 CRR – instructor-led Settlement Workshop Operations Seminar NATF 3/2 Weekly calls Phase 3 Execution Phase 4 Handbooks Updates to prior handbooks LFC individual QSE tests 4 site visits Scheduled Site Visits conclude MRS #3 Standby site visits Phase 4 metrics launch Weekly calls Phase 4 Market Trials initiates NATF 4/6 Nodal 101 Trans 101 Generation 101, 201 CRR – instructor-led NMMS Economics of LMP

4. Training Update Reminder of Ongoing Training as Nodal Market Education Courses Designed to facilitate entry into Nodal Market Focus on Nodal topics Nodal terms and processes Nodal processes, roles Market impacts on business and operations Course Schedules Online Most courses offered on 6-week cycle Classes usually offered in Austin, Houston & Dallas Web-Based Training (WBT) available http://nodal.ercot.com/training/courses/index.htmlhttp://nodal.ercot.com/training/courses/index.html Slide 4

5. Upcoming Training Opportunities Course Start DateLocation Transmission 101January 26ERCOT Met Center (Austin) Economics of LMPFebruary 1ERCOT Met Center (Austin) Congestion Revenue RightsFebruary 3ERCOT Met Center (Austin) Load Serving Entity 201February 3Stream Energy (Dallas) Generation 201February 9Suez Energy (Houston Generation 101February 16Austin Airport Marriott South (Austin) Network Model ManagementFebruary 18ERCOT Met Center (Austin) Settlements Workshop –RUC/RTMFebruary 23ERCOT Met Center (Austin) ERCOT Nodal 101February 25ERCOT Met Center (Austin) Load Serving Entity 201March 3ERCOT Met Center (Austin) Economics of LMPMarch 8Norris Conference Center (Houston) Basic Training ProgramMarch 8Austin Airport Marriott South (Austin) Congestion Revenue RightsMarch 9Norris Conference Center (Houston) Settlements Workshop –RUC/RTMMarch 9City of Garland Fire Building (Dallas) Settlements Workshop –RUC/RTMMarch 23Calpine (Houston)

6. Market Participant Outreach Program OutreachTopics: All materials are available on the Nodal Readiness Center. (http://nodal.ercot.com/readiness/outreach/index.html)http://nodal.ercot.com/readiness/outreach/index.html 6 Nodal Program Update Mandatory Topic (60 min) Readiness Center & Readiness Scorecard (45 min) Congestion Revenue Rights Auction Implementation (60 min) Reliability Unit Commitment Implementation (60 min) Real Time Market Processes & Systems (60 min) Nodal Settlement & Billing Processes (60 min) Day-Ahead Market Implementation (60 min) Nodal Reports & Data Extracts (30 min) Telemetry & Load Frequency Control (30 min) Slide 6 Credit Management Coming soon (45 min)

7. Market Participant Outreach Program Slide 7 Outreach Site Visits continue through March 2010 EntityDate LOWER COLORADO RIVER AUTHORITY9-Oct CALPINE CORP14-Oct AUSTIN ENERGY20-Oct CITY OF GARLAND21-Oct GDF SUEZ ENERGY MARKETING29-Oct ANP FUNDING3-Nov LUMINANT ENERGY5-Nov INVENERGY WIND DEVELOPMENT10-Nov EXELON11-Nov AMERICAN ELECTRIC POWER SERVICE12-Nov CONSTELLATION ENERGY17-Nov PSEG ENERGY RESOURCES18-Nov J ARON19-Nov FULCRUM POWER2-Dec EAGLE ENERGY PARTNERS I LP3-Dec STEC9-Dec BP ENERGY COMPANY10-Dec ConfirmedCompleted EntityDate NRG TEXAS POWER15-Dec DIRECT ENERGY LP5-Jan CPS ENERGY6-Jan BTU (Bryan Texas Utilities) SERVICES13-Jan DIRECT ENERGY14-Jan APX19-Jan OCCIDENTAL20-Jan TENASKA POWER SERVICES26-Jan OPTIM ENERGY27-Jan E.ON9-Feb WIND PANEL (Houston)16-Feb RETAIL PANEL (Houston)17-Feb TRI-EAGLE ENERGY18-Feb NEXTEra26-Feb XTEND ENERGY LP SHELL ENERGY3-Mar TOPAZ POWER MANAGEMENT4-Mar BRAZOS ELECTRIC SHELL ENERGY10-Mar SHELL ENERGY11-Mar FORMOSA UTILITY VENTURE16-Mar

8. Readiness Workshops Outreach: Program Update Outreach: Real-Time Market Outreach: Merged DAM&RUC Credit Management Wind Resource discussion RSVP required due to room limitations, but WebEx available Wind- http://www.ercot.com/calendar/2010/02/20100216-MT http://www.ercot.com/calendar/2010/02/20100216-MT Retail- http://www.ercot.com/calendar/2010/02/20100217-MT http://www.ercot.com/calendar/2010/02/20100217-MT Outreach: Program Update Outreach: Merged DAM&RTM Outreach: CRR Auction Credit Management Retail operations discussion http://nodal.ercot.com 8 Wind Panel Hosted by Horizon Wind February 16, 2010 Houston, TX 9-3pm Retail Panel Hosted by StarTex February 17, 2010 Houston, TX 9-3pm

9. Workshops/WebEx in Planning Phase http://nodal.ercot.com 9 Combined Cycle Workshop April 2010 Ancillary Services Workshop April 2010 Credit (part Wind/Retail Workshops) Feb 2010 Creating additional workshops to meet market needs identified with Outreach Site visits Focused ½ day sessions on key issues Access to key SMEs

10. Reminder of Nodal Readiness Center Content Readiness Center –Contains key engagement information including Calendar, Notices, Market Trials, Outreach, etc (see next slide) –http://nodal.ercot.com/readiness/index.htmlhttp://nodal.ercot.com/readiness/index.html Other Key Nodal Website Links –http://nodal.ercot.comhttp://nodal.ercot.com Training Center Nodal Business Requirement and Design Documentation Nodal Protocols Nodal Operating Guides Slide 10

11. http://nodal.ercot.com 11

12. Questions before moving on to the Readiness/Scorecard? http://nodal.ercot.com 12